Dahlia plant named &#39;lomdahbaw&#39;

ABSTRACT

A new and distinct  Dahlia  cultivar named ‘LOMDAHBAW’ is disclosed, characterized by distinctive white flowers, compact, well branched plants producing many flowers and flowering within 10 weeks of planting a rooted cutting. The new variety is a  Dahlia , normally produced as an outdoor ornamental plant for containers or gardens.

LATIN NAME OF THE GENUS AND SPECIES

Dahlia hybrid

VARIETY DENOMINATION

‘LOMDAHBAW’

BACKGROUND OF THE INVENTION

The new cultivar was discovered as a result of a planned breedingprogram directed by the inventor, Henry Lommerse a citizen of theNetherlands. The parent is an undistributed, unpatented proprietaryvariety Dahlia hybrid ‘25071’ and the pollen parent is theundistributed, unpatented proprietary variety Dahlia hybrid ‘23868. ’The new variety was discovered as a seedling in August 2006, by theinventor in a commercial research greenhouse in Mariahout, theNetherlands.

Asexual reproduction of the new cultivar ‘LOMDAHBAW’ by vegetativecuttings was first performed in 2008, at a research greenhouse inMariahout, the Netherlands. Multiple generations have since beenproduced and have shown that the unique features of this cultivar arestable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

The cultivar ‘LOMDAHBAW’ has not been observed under all possibleenvironmental conditions. The phenotype may vary somewhat withvariations in environment such as temperature, day length, and lightintensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘LOMDAHBAW’ These characteristics incombination distinguish ‘LOMDAHBAW’ as a new and distinct Dahliacultivar:

1. Full, white inflorescence.

2. Compact plant habit.

3. Floriferous habit.

4. Flowering within 10 weeks from planting a rooted cutting.

PARENT COMPARISON

Plants of the new cultivar ‘LOMDAHBAW’ are similar to plants of the seedparent, Dahlia hybrid ‘25071’ in most horticultural characteristics,however, plants of the new cultivar ‘LOMDAHBAW’ produce larger flowersand more flowers than ‘25071’. Additionally, the new cultivar growsfaster and produces a stronger plant than the seed parent.

Plants of the new cultivar ‘LOMDAHBAW’ are similar to plants of thepollen parent, Dahlia hybrid ‘23868’ in most horticulturalcharacteristics, however, plants of the new cultivar ‘LOMDAHBAW’ producemore flowers with a brighter white coloration.

COMMERCIAL COMPARISON

‘LOMDAHBAW’ can be compared to the commercial variety Dahlia hybrida‘Dalina Maxi Lopez’ unpatented. The two varieties are similar in manyhorticultural characteristics, including having a similar flower color.However, plants of ‘LOMDAHBAW’ are more compact, and form a more dense,full plant. Additionally plants of ‘LOMDAHBAW’ begin flowering earlierfrom a rooted cutting than ‘Maxi Lopez’.

The new variety can also be compared to the commercial variety Dahliahybrida, ‘Fidahhypwhi’, U.S. Plant Pat. No. 21,256. Dahlia ‘LOMDAHBAW’and Dahlia ‘Fidahhypwhi’ are similar in many horticulturalcharacteristics, including a similar flower color. However, plants of‘LOMDAHBAW’ are more vigorous, and produce more flowers and branches perplant.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph in FIG. 1 illustrates in full color atypical plant of ‘LOMDAHBAW’ grown in a outdoors, in Mariahout, theNetherlands, in a commercial 20 cm container. Age of the plantphotographed is approximately 70 days from a rooted cutting. Thephotographs were taken using conventional techniques and although colorsmay appear different from actual colors due to light reflectance it isas accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The RoyalHorticultural Society Colour Chart except where general terms ofordinary dictionary significance are used. The following observationsand measurements describe ‘LOMDAHBAW’ plants grown outdoors, in theground during the Summer months in Mariahout, the Netherlands. Thegrowing temperature ranged from 16° C. to 27° C. daytime and 16° to 18°C. at night. One treatment of the growth regulator daminozide 85% at arate of approximately 0.1%, was applied at approximately 2 weeks afterplanting the rooted cutting. Measurements and numerical values representaverages of typical plant types.

-   Botanical classification: Dahlia hybrid ‘LOMDAHBAW.’-   Propagation:    -   -   Time to initiate roots.—Summer: 13-15 days days at            approximately 20-18 (day-night) ° C. Winter: 19-23 days at            approximately 18-16 (day-night) ° C.        -   Root description.—Fibrous.        -   Tuber description.—Average length: 10.9 cm, average            thickness: 1.0 cm, Coloured near RHS Greyed-Yellow 161D.        -   Propagation method.—Vegetative cuttings.-   Plant:    -   -   Age of plant described.—70 days from a rooted cutting.        -   Growth habit.—Broad inverted triangular, broad upright.        -   Pot size of plant described.—Field grown.        -   Height.—Approximately 43.4 cm.        -   Plant spread.—Approximately 57.5 cm.        -   Growth rate.—Moderate.        -   Branching characteristics.—.        -   Length of primary lateral branches.—Approximately 32.6 cm.        -   Quantity of lateral branches.—Approximately 45.        -   Characteristics of primary lateral branches.—Diameter:            Approximately 0.8 cm. Color: Near RHS Yellow-Green 144A            Texture: Smooth, moderately glossy Strength: Moderately            strong.        -   Internode length.—Average 4.4 cm.-   Foliage:    -   -   Leaf.—Arrangement: Single to cleft in three lobes, opposite            Shape: Overall shape ovate Quantity: Approximately 14 pairs            per branch Average Overall Length: Approximately 9.7 cm.            Average Overall Width: Approximately 7.5 cm.        -   Individual leaf blades.—Shape of blade: Ovate Apex:            Apiculate Base: Acuminate Margin: Coarsely serrate            Appearance of surfaces: Matte. Pubescence: No leaf            pubescence on upper side; under side and margins sparsely            pubescent, average length of hairs: 0.2 mm, colored            green-white, too small to be measured with RHS-Colour Chart.            Attachment Angle: Leaves placed in an average angle of 40°            to lateral branch Color: Young foliage upper side: Near RHS            Green N137C Young foliage under side: Near RHS Yellow-Green            147B Mature foliage upper side: Near RHS Green137A Mature            foliage under side: Near RHS Yellow-Green 148B Venation:            Type: Pinnate Venation color upper side: Near RHS Green 143A            Venation color under side: Near RHS Yellow-Green 146B            Petiole: Length: 2.7 cm. Diameter: 0.2 cm. Color: Near RHS            Yellow-Green 144A Texture: Smooth, glossy No stipules            present.-   Flower:    -   -   Natural flowering season.—Spring through Summer.        -   Days to flowering from rooted cutting.—ten weeks.        -   Inflorescence and flower type and habit.—Single, fully            double, facing outward at a 90° angle from peduncle.        -   Rate of flower opening.—14 to 21 days from bud to fully            opened flower.        -   Flower longevity on plant.—Approximately 2 weeks.        -   Persistent or self-cleaning.—Persistent.        -   Bud.—Shape: Flattened globular Length: 1.2 cm Diameter: 1.5            cm Color: Near RHS Yellow-Green N144C, base darker near            Green 143A.        -   Flower size.—Diameter: Approximately 10.4 cm. Depth:            Approximately 3.1 cm.        -   Ray florets.—Quantity: Approx. 100 Arrangement: Rotate, in 5            rows Length: Approximately 3.3 cm Width: Approximately 1.3            cm Shape: Obovate, base fused Apex: Subacute to obtuse.            Base: Cuneate Margin: Entire Texture and appearance, upper            and lower surfaces: Smooth, slightly velvety, dull.        -   Color.—When opening, upper surface: Near RHS Green-White            157D, base Yellow-Green 150B When opening, lower surface:            Near RHS Green-White 157D, base Yellow-Green 150C Fully            opened, upper surface: Near RHS Green-White 157D, base            Yellow-Green 150B Fully opened, lower surface: Near RHS            Green-White 157C, base Yellow-Green 150C.        -   Disc florets.—Quantity: Approx. 4, in center of flower            Length: Approximately 0.7 cm Width: 0.1 cm Shape: Cylindric            Apex: Obtuse Base: Fused Margin: Entire Texture and            appearance, upper and lower surfaces: Shiny.        -   Color.—When opening, all surfaces: Near RHS Green-Yellow 1B            Fully opened, all surfaces: Near RHS Green-Yellow 1B.        -   Phyllaries.—Quantity: 7 Length: Approximately 1.7 cm Width:            Approximately 0.5 cm Shape (overall): Ovate to elliptic            Apex: Subacute Base: Cuneate Margin: Entire Color: Near RHS            Green 137B.        -   Peduncles.—Length: Average 10.0 cm Diameter: Approximately            0.3 cm Strength: Strong Texture: Smooth, glossy Color: Near            RHS Yellow-Green 144B Strength: Strong.        -   Fragrance.—Very faint.-   Reproductive organs:    -   -   Stamens.—Number: Average of 4 minute disc florets in the            centre of the inflorescence with an average of 4 deformed            stamen per disc floret.        -   Anthers.—Shape: Linear Length: Approximately 0.4 cm. Color:            Near RHS Yellow 14A Pollen: None observed.        -   Pistil.—No pistil present.-   Other characteristics:    -   -   Seeds and fruits.—Not observed to date.        -   Disease/pest resistance.—Neither resistance nor            susceptibility to pathogens and pests common to Dahlia have            been observed.        -   Temperature tolerance.—The new variety tolerates            temperatures between 10 to 35° C.

1. A new and distinct cultivar of Dahlia plant named ‘LOMDAHBAW’ asherein illustrated and described.